#import "ViewController.h" #import <AVFoundation/AVFoundation.h> @interface ViewController () /** * 背景图片 */ @property (weak, nonatomic) IBOutlet UIImageView *bgImageView; /** 播放器 */ @property (nonatomic, strong) AVPlayer *player; @end @implementation ViewController - (void)viewDidLoad { [super viewDidLoad]; // 1.加毛玻璃 UIToolbar *toolbar = [[UIToolbar alloc] init]; // 2. 设置frame toolbar.frame = self.bgImageView.bounds; // 3. 设置样式和透明度 toolbar.barStyle = UIBarStyleBlack; toolbar.alpha = 0.98; // 4.加到背景图片上 [self.bgImageView addSubview:toolbar]; // 5.创建播放器 /* NSString *path = [[NSBundle mainBundle] pathForResource:@"mySong1.mp3" ofType:nil]; NSURL *url = [NSURL fileURLWithPath:path]; */ // 资源的URL地址 NSURL *url = [[NSBundle mainBundle] URLForResource:@"mySong1.mp3" withExtension:nil]; // 创建播放器曲目 AVPlayerItem *playerItem = [[AVPlayerItem alloc] initWithURL:url]; // 创建播放器 self.player = [[AVPlayer alloc] initWithPlayerItem:playerItem]; } /** * 播放/暂停 * * @param button 按钮 */ - (IBAction)playOrPause:(UIButton *)button { switch (button.tag) { case 3: [self.player play]; // 播放 break; case 4: [self.player pause]; // 暂停 break; default: break; } } /** * 切换歌曲 * * @param button 按钮 */ - (IBAction)changeMusic:(UIButton *)button { // 歌曲的名称 NSString *musicName = nil; switch (button.tag) { case 1:// 上一首 musicName = @"mySong2.mp3"; break; case 2:// 下一首 musicName = @"mySong3.mp3"; break; default: break; } NSURL *url = [[NSBundle mainBundle] URLForResource:musicName withExtension:nil]; AVPlayerItem *playerItem = [[AVPlayerItem alloc] initWithURL:url]; [self.player replaceCurrentItemWithPlayerItem:playerItem]; // 播放 [self.player play]; } @end